CONTENTS

NAME

dfeta -- Disk Freespace ETA Estimation

SYNOPSIS

dfeta sample
dfeta -d /usr/bin/df
dfeta
dfeta -h

DESCRIPTION

dfeta samples disk freespace information on regular periods. then it
can show (rough) estimate time when disk/device will be full.
to sample current status (free space) on all local filesystems:
dfeta sample
to get estimates for the sampled filesystems:
dfeta eta
or just:
dfeta
'dfeta sample' is supposed to be run on regular basis (for example
from the crontab). to attach it to every hour in the crontab you need
to enter this line:
0 * * * * /usr/local/bin/dfeta sample
dfeta holds current statistics in:
$HOME/.dfeta/data
each 'sample' command will backup previous data file.

REQUIREMENTS

dfeta needs Perl. it is pure perl implementation and uses the following
perl modules:
Data::Dumper
Storable
Math::BigFloat
all of them should be standard and packed inside the Perl package you have
installed.

EXAMPLE OUTPUT

FAQ

Q: what estimation algorithm is used?
A: currently only linear regression is used.
more algorithms will be added in the future.
no additional sampling will be needed for other algorithms.
just keeps your sampling regular!

LICENSE

dfeta is distributed under the GPL license, see COPYING for
the full license text.